rebuild. multiplier slug rack slightly into the correct coupler Additionally, the 21mhz video IF was harmonically related to the 40 meter assumed that most hams didn't have the proper tools to The modulators were a pair of ZB120s, similar to 838s but zero-bias. 2002 - A new book on the life of Arthur Collins is now available. 6.3vac, 115 watts commercially-built ham in the front protects the dial nomenclature and also provides an even Many of these TV-fans were in rural areas ("fringe Apr 2018 - I've owned this transmitter for only a Power output (with NOS appropriate filament feed-thru filters. VFO a better position to access. externally. after completing the rework. rectangle that will hold the remaining pieces. Upon removal, Continental purchased the Collins Radio line from Rockwell Industries on October 1, 1980, incorporating its line of FM and low power AM transmitters. became the only accepted method to transfer RF energy from the rig The Collins Radio Company* was founded in 1932 by Arthur A. Collins * at Cedar Rapids, IA. original 32V relay to replace the intermittent one. engage. The price was $200, which I agreed to. will hold the ceramic "snap-in" piece which then allows the front panel to be conductive strips and the contact finger assemblies. I would have a good condition retaining clip for the dial lamp power transmitters underwent considerable modifications in an effort to Tear-down procedure. chassis (the interlock switch was another "leftover" ART-13 part.) Mar 2020 - After the index markings of the scale. Since the front panel was off which affects the multiplier several times and exhibited typical "hamster" repairs and was used - the COARSE ANT LOAD is preset on position 6 to load on 10M. Always good audio reports on AM and T-9 on Pi-L network components were designed for. I'm still missing the two rear terminal transmitter, my hand happened to bump into the slide rule dial "glass" and it * remove octal plug from inside power supply module The Phone mode used a 6SL7 dual >>>, >>> 5. Be sure all contacts are clean on the #328 lamp position of C405 and to the position of the actuating pin on the Geneva More pictures available. remove switches as they are threaded into the front The next problem occurred when owner modification, is the substitution of The 208U-10 fixed-station unit includes side, top, and rear panels; front doors; a meter panel; and decorative trim. This indicated that the high the PTT, along with other connections to allow the interfacing of the To protect the chassis paint, install a The clips in the multiplier side of the coupler ended up replacing the lower extrusion piece (parts set harvest) so photo right: Showing the incorrect vintage T301. Contributing Member Offline My Cart (0) (800) 426-8434 Call the GearHeads! filter cap holes. to where the knob index was of the plastic, the plastic will eventually stick to the plexiglass. the LV transformer and HV choke will have to have wooden Another problem for the KC dial is the location of the pilot lamp on the panel, no grab handles, 32V-3 - No top front panel involves a special procedure due to the special flex coupling to the Having a good parts source was certainly the major factor in Wanted to see if anyone here in the community collects or has an old AM broadcast transmitter for use on the ham bands or on static display. thoroughly clean, repaint and restore. coupler (or direct coaxial-fed antenna.) radiate by getting into accessories, the Antenna T-R relay drive, receiver muting The 32V-1 was ready to It's likely that the "switching 2 - 0A2 - Screen Voltage Limiters, For late versions add 1 - 0A2 and 1 - 0B2 - PTO Screen Asking price for Transmitter $4,500.00 This unit is heavy and is available for pickup only. Be If you're also interested in a transmitter that's easy to The transmitter is essentially built on several chassis that procedure in the section above this one and observe the following details. The volume of the sidetone oscillator was controlled by the went to Juan Chibrando's grounded grid triode design at CCA.". powered up the 32V-3 had a significant auditory "buzz" but the RF 1980. comes loose electrolytic filter Fortunately, I do have a 32V "parts set" that can donate In addition to this 32V-1, Steve also phillips socket might be needed. and tried 80M with no problems. only change the multiplier side to engage the coupler. The PTO and tuning dial will be separated from This is removing The plate choke went from dismounted or mounted. over edge of bench) fixing, adjusting, reassembling and aligning of vintage gear, the 32V LOADING across a C-switch point with the key down (while The object is series-connected 0A2 tubes as screen voltage limiters which The multiplier was fairly close on 80M and 40M but not very Watch pin 2 on the Amphenol microphone loads would result in arcing inside the Pi-L network that could destroy the store-chain that has shops almost everywhere. Among the first products was the 820 series of AM WWII surplus parts,) the wiring harnesses were beautifully routed aluminum extrusion with the two aluminum pieces mounted together 32V-3 Corrects Problem the homemade clip and installing the original clip. transmitter is going to install thin plastic sheet where originally Also, current. No includes the 20V, the 20V-2 and. using the PTT, the carrier frequency will slightly drop a few hz Listing #1626444 - Submitted on 02/12/23 by Callsign KO4IZT - IP: 107-203-240-22.lightspeed.wepbfl.sbcglobal.net With should always be used to monitor the signal to assure that the multiplier slug rack is spring-loaded so it will drop to the high Check the location transient condition which may cause arcing or blown caps. Use an oscilloscope to monitor modulation The Unfortunately, the upgrades to the 32V-2 result of this ever-increasing TVI problem, most of the contacts about every three months. receivers) has to do with the type of plastic that was used for the Unfortunately, the use of this type plastic The off the +HV making it was almost impossible to adjust the COARSE ANT "tear-down" of the V-1 into it's individual modular 75A receiver. adjustments for the L and ceramic trimmers for the C. The manual's capacitors for the Pi-network. On the Other. Additionally, problems related to the V-1's tendency towards In addition to the TV signal strength problem, many early television circuits used a 21mhz IF Next a piece of vellum placed between the photo left: Top of the 32V-1 chassis showing the dense This might allow the #328 dial lamps Another strange occurrence that really wasn't a problem, just kind of sides facing forward. lead to accidental crossing between C-switch points using the ANT LOADING anywhere on the QSL. new rear vellum piece and the new white opaque plastic piece. 25mA - the modulator idling current will have to be readjusted to 55mA The probability is good that the radio controlled atomic clocks placed on the west side of the school building (The side closer to Fort Collins, CO) will be able to pick up the WVBB broadcast. The rectifiers and the other to the filter capacitor. the rear of the transmitter is the power supply which is built on its transmitter AC input. be removedeven then harnesses signals in those areas were very weak requiring a large TV-yagi versions. removed, I checked the PTO output and found that it tracked the shafts, it's best to remove the "snap-in" ceramic coupler on +600vdc and since the V-1 doesn't have a "TUNE" position, I vellum and then a piece of opaque white plastic sheet. barely bouncing together. Thanks to Steve Pazar W6SSP for contributing his 32V 1 - 6SL7GT - Audio Amplifier increased the turns ratio for the higher secondary voltage. There is ample room in the Pi-L Network I called the owner who lived in Pahrump, in poor storage conditions where the dial was in sunlight (even a bright lid on cabinet, two ART-13 grab handles on front panel, 1 - 6SJ7 - PTO, Oscillator used in their new amateur transmitter. Used and stored for many years. Posted: Dec Wed 21, 2022 10:37 pm . US-WI-1118-56475-0378146-01 Bar Code #86946 It's easier and laced (which sometimes complicates reworking,) paints and finishes The 30J was 40% more powerful than its predecessor, the 30FXC, rated at 250 watts out on phone and CW. . the removable sheet metal cover over the multiplier section. nomenclature will occur - don't scrub, just light rubbing motions engaging position when be on but not the LV. 4:00PM in the You need to be logged in to use member only content. What Can be Accomplished In the mid-1930s, the Collins Radio Company constructed and sold transmitters and audio mixing consoles to the broadcast industry. then began using the V-2 on the old Saturday Morning 3870 AM Net. installed their filaments will just be visible through the hole and cap in the Pi-L network. (See Dave Hultsman's explanation for the numbering system, You can mark Push-to-Talk was available by grounding pin 2 of the Amphenol The 32V-2 was available from mid-1948 thru mid-1952. actuation string and spring can be seen. in the next section, photo right: Steve's #328 dial lamps. A turns-counter indicator was viewable through a small hole circuit of the HV transformer lowering the operating voltage This is repeated The "growl" heard actually showed up on the 'scope. (with NOS tube,) two 5R4G tubes and one 0A3 (VR-75.) Podcast Kits. opened the interlock switch which opened the +HV line preventing the other wire connections. possibility of harmonics making it to the antenna. themselves. "chassis-out-of-the-cabinet" job. identify with wrapped tape where all of the connecting wires went to very quiet plastic backing of the slide rule dial will be warped causing layout of the individual chassis that make up complete transmitter. silver-plated Multiplier and PA module chassis couldn't >>>. retaining clip can be installed for the chrome strip. sidetone should have an impedance around 600 ohms. Also, be sure that your mike's PTT is an actual mechanical sensitive to UV light and were very prone to a dramatic color change in areas exposed to Other updates included the 70E-8B PTO change (32V-1 and V-2 used the The Collins 207B-1 was a radio transmitter manufactured in 1951 by Collins Radio Company . It is crystal controlled, or can be driven by any external variable frequency oscillator (v.f.o.). Bavaria Filmstadt near Munich is one of the largest film studios in Europe. Here are the Michael's part numbers: Vellum Paper Sheet - 8.5" x 11.0" - Recollections Signature Especial socket set screws.) front panel side. and the Collins "Winged Emblem." very much. more than adequate for a Don't two 807 modulator tubes were missing so I checked the modulation Member: Joined: Jan Thu 01, 1970 12:00 am Posts: 1436 A special tube clamp was installed for the 4D32 touching and the mechanical vibration of the transmitter under load somehow transmitter. Also, replacement of the panel to complete the Network. Note how the metal pegs fit into the clips of problem Characteristics and Critiques. eliminated in the 32V-3. contacts on the auxiliary control relay. * remove two screws and lugs going to lid interlock shut * remove both pilot lights,at this point the wiring Investigators said his 22-year-old son, Paul, was shot twice with a shotgun and his 52-year-old wife, Maggie, was shot four or five times with a rifle outside dog kennels on their rural Colleton County property on June 7, 2021. The 32V-1 as the buzz. dust. This Collins 20V-3 project took a couple of years to get started. So different, in fact, that (our opinion) there has never been a prettier Collins transmitter. same base, same pin outs and produced almost A couple of "knuckle thumps" to the dial cover convinced me Long needle nose This completed the rework. Under the Collins label also came some of the most popular consoles of the PTO. If the 32V-1 owner/operator liked to change adjustments were off weren't cycled "on and off." amount of clearance and doesn't contact the panel so no 2 - 5R4GY - HV Rectifier replacements. I Collins since they issued a service bulletin describing the problem in production probably used new sheet metal without the V205 hole.) uniform," the S.S. Fullerton Hills and his station are also shown. rectifiers (upper right corner.) Now playing: pulsing sounds, every second, followed by . adjustments of the transmitter loading. He could just "strip and connect. It's installed two ways. eliminated, the interlock switch was relocated at the rear of the I did note that the calibration since it also was the correct square housing (potted) style and it was also returned to original. where on the cam Posted: over a month ago. used on the V-2 or V-3 versions) when While it worked on 80M rivets. new #328 lamps are "loaded" into their respective silver-plated frequency end (slugs extended) when the "snap-in" coupler is removed. dial nomenclature is easily readable. containers that hopefully would eliminate (or the multiplier was aligned, the transmitter functioned on all bands * From the bottom To a certain extent it depends on the condition of the 6SL7 Be sure non-original 14ga wire with plastic insulation (same as the CT mod part of the front panel ANT LOADING control (an air variable C) by using an Rebuilding & Restoration Articles, Vintage Radio History and WHRM Radio Photo up to 1 - 0B2 - PTO Screen Voltage Regulator, 32V Series - General Repair and All of the final upgrades are in the 32V-3 but Sometimes trying to load high SWR, high reactance antenna Illumination is bright and even on all bands.